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(No Model!) 2 Sheets-Sheet 1.

E.-J. MARSH. WINDMILL REGULATOR.

Patented Jan. 5, 1897.

I No. 574,813,

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UNITED STAT S PATENT OFFICE.

EDGAR J. MARSH, OF OOLDSTREAM, CANADA.

WlNDMlLL-REGULATOR.

SPECIFICATION forming part of Letters Patent No. 574,813, dated January5, 1897.

Application filed June 24, 1895. Serial No. 553,927. (No modelJ 1'0 (LUwhom it "may concern.-

Be it known that I, EDGAR J. MARsH, a subject of the Queen of GreatBritain, and a resident of Coldstream, in the county of Middlesex, inthe Province of Ontario, Canada, have invented a new and usefulWindmill- Regulator, of which the following is a specification.

This invention relates to improvements 011 a mill in which motion isimparted to mechanism for operating a pump, root-cutter, or for anyother purpose desired by the action of the wind on a wheel or revolvingsail; and these improvements relate to mechanism which governs thewind-wheel or sail and causes the latter to revolve at auniform rate ofspeed when winds of different force are acting thereon.

To this end my invention consists in the specific details ofconstruction, as hereinafter more fully described and claimed, and asillustrated in the accompanying drawings, wherein- Figure 1 is a rearView of the upper portion of a windmill embodying my invention. In thisview the vane is removed in order to illustrate the working parts moreclearly. Fig. 2 is a side View of same, showing the vane attached. Fig.3 is an enlarged detail view, partly in section, of the working parts ofFig. 1.

A designates the windmill-tower, the upper end only of which is shown;B, a hollow standard, the lower end of which is fixed to said tower. I

O designates a hollow or tubular metallic head in the lower end of whicha socket to is formed, in which socket the upperend of the standard B isinserted and fixed therein by the bolts 1); or this socket to may beformed by flanges integral with said head 0, which project downward fromsaid head and clasp the standard B, and be fixed thereto by means ofsaid bolts 1).

D designates a U-shaped rotatable yoke in the forked ends of which thepivot-bar E is fixed, the forked ends of said table being strengthenedby the cross-brace e, secured to or formed integral with said forkedends, and the body of said turn-table is formed tubular and fitted toand encircles a portion of the head C and rests on theoutwardly-projecting shoulder 2' thereof.

F designates a collar, which is fixed t0 the head 0 by a set-screw orother suitable securing means for the purpose of preventing the yoke Dfrom raising.

G designates a tubular shaft, which is fitted to and extends upwardthrough the head 0 and standard B, and I-I designates a beveledgear-wheel fixed to the upper end of said shaft G, which beveledgear-wheel H rests on the cross-brace e and forms a convenient means forpreventing the shaft G from falling out of the head 0 or standard B, andthe lower end of this shaft G is provided with suitable gearing andmechanism by which it may be connected with a pump, root-cutter, &c.

I designates a beveled gear-wheel which revolves perfectly free on thepivot-bar E, and this gear-wheel I engages with the gear-wheel H, sothat as the gear-wheel I is operated the gear-wheel H will also beoperated, as well as the shaft G and the pump or other device connectedtherewith.

J designates a tilting frame which is pivotally supported on the rotaryframe by the bar E, the sides or arms of which frame are rigidly bracedand held together by the cross and stop braces d and f and the cap g.The brace f strengthens and stiifens the frame J above the pivot-bar E,and the stop-brace d serves the same end below said pivot-bar, and thebrace f, engaging with the vane R or a post secu red thereto, preventsthe wheel P or frame J from turning downward below a horizontalposition, and the stop-brace cl engages with the standard B to preventthe Wheel P or frame J from turning forward beyond a vertical position.The movement of the frame J or wheel P is therebylimited to or preventedfrom moving farther than an angle of ninety degrees.

T designates the governor or balancing means, which I have illustratedas being a weight or weights and which are adjustably secured to thelower ends of the arms of the tilting frame J.

K designates a shaft supported by and revolvin g perfectly free inbearings'in the brace f and cap g, to which shaft the beveled gearwheelsL and M are fixed and on opposite sides of the brace f and cap g for thepurpose of preventing said shaft K from falling out of said brace orsaid cap, and said beveled gear-wheel L engages with the gear-wheel I.

N designates the wheel-shaft, which is held in place by and revolvesperfectly free in bearings h on the cap g.

0 designates a beveled gear-wheehand P the revolving wind-wheel, whichare fixed to the wheel-shaft N, and said beveled gear-wheel O engageswith the beveled gear-wheel M, so that as the wind, acting on the slatsor sails of the wheel P, causes said wheel to operate the mechanism justenumerated communi cates motion to the pump or other device connectedwith the shaft G.

R designates a vane which is seen red to the yoke D, against which thewind acts to hold the wheel P to the wind.

S designates a rope, one end of which is attached to the tilting frame.I, and 7e and a designate grooved antifriction-rollers secured to thevane R and the pivot-bar E, respectively, over which this cord S passes.Said cord then passes down through the tubular shaft G to the ground, bymeans of which cord the tilting frame J and wheel P may be adjusted to ahorizontal position when there is no necessity for further operation.

The operation of my improved construc tion is as follows: The weights Tare regulated or are in proportion to the amount of power required andare for the purpose of holding the wheel P to the wind, when the wind isof a certain or normal force, to present the required fan or sailsurface of the wheel to the wind in proportion to the power required andthus automatically regulate the speed of said wheel P. The result ofwind of greater force will be to overcome the resistance of the weightsT and automatically tilt the wheel to the rear, as shown by dotted lineas, Fig. 2, and thereby automatically present less surface of the wheelto the wind. Again, if the force of the wind is less than normal theweights T will be sufficient to ox ercome the resistance thereof andautomatically adjust the wheel to the position shown by dotted line inFig. 2 and present greater area of fan or sail surface of said wheel tothe wind. The area of the wheel in proportion to the force of the windwill be thereby automatically maintained, and as a result this balancingmeans will automatically maintain an even uniform speed when operated bywinds of different force.

I do not limit myself to the exact construction hereinbefore set forth,as a great many changes maybe made without departing from the spirit ofmy invention.

Having thus described my invention, I claim 1. In a windmill, thecombination with a tower, a rotating yoke mounted thereon, and a vanecarried by the tower and having a roller; of a tilting frame composed oftwo long arms standing astride the yoke and pivoted between their endsthereto, a second rolleron the pivot-bar within the yoke, bracesconnecting the arms above and below said pivot, a cap connecting theirupper ends and having bearings for the axle of the windwheel, weights attheir lower ends, and a rope leading from the cap, over the roller onthe vane, thence over the roller on the pivot-bar, and to the ground, asand for the purpose set forth.

2. In a windmill, the combination with a tower, a tubular head mountedthereon and having an annular shoulder, an upright yoke having a tubularstem journaled around said head and resting on the shoulder, and acollar secured to the head above the stem; of a brace across the yokeabove said collar, an upright shaft jonrnaled through the head and braceand carrying a bevel-gear at its upper end, an open frame spanning theyoke and pivotally connected with the outside thereof by a transversepivot-bar passing through the yoke above said bevel-gear, a wind-wheelon one end of the frame, a weight at its other end, a longitudinal shaftin the frame driven by said wind-wheel and having a bevel'gear justabove said pivot-bar, and an idle-gear journaled 011 the pivot-bar andconnecting said two bevel-gears, substantial] y as an d for the purposeset forth.

In testimony whereof I have signed in the presence of the twoundersigned witnesses.

EDGAR J. MARSH. \Yitnesses:

P. J. EDMUNDs, S. MCBAIN.

